Bosch PLL 2 Manual Original página 28

OBJ_BUCH-2030-003.book Page 28 Thursday, January 23, 2014 10:38 AM
28 | English
Align with target plate (see figure G)
The measuring tool must be calibrated with the target plate in order to en-
sure conformity of the tilt angle shown in the display with the projected la-
ser line on the wall. Place the target plate on the wall. Select the cross-line
mode or the vertical mode of the automatic levelling operation mode.
Ensure that the laser line passes through the upper and lower red mark on
the target plate. Select a mode of the tilt function with angle indicator
operation mode and project the laser line in the desired angle on the wall.
When doing so, do not tilt the measuring tool more than 10 ° forwards (in
the direction of the laser) or backwards (in the direction of the display).
Otherwise the measuring accuracy may deteriorate.
Digital spirit level
The measuring tool checks horizontal or vertical like a spirit level. Laser
lines are not projected.
The side of the laser aperture serves as a reference edge. For angle meas-
urement, align this reference edge with the horizontal or vertical plane
that is to be measured. When doing so, do not tilt the measuring tool more
than 5 ° forwards (in the direction of the laser) or backwards (in the direc-
tion of the display). Otherwise the measuring accuracy may deteriorate.
Working Advice
Calibration of the inclinometer without laser lines (e. g. before the in-
itial operation, after transportation or severe temperature fluctua-
tions):
Place the measuring tool on a flat table with a tilt of less than 5 °. Select
the digital spirit level mode. Press and hold the "Cal" calibration button
3 until the hook f appears in the display and CA1 is permanently shown.
Rotate the measuring tool 180 ° within 15 seconds and press the "Cal"
button 3 again until CA2 flashes in the display. The calibration is complet-
ed once the hook f appears in the display and CA2 is permanently shown.
Accuracy Check of the Measuring Tool
Regularly check the accuracy of the grade measurement. This is done by
carrying out a reversal measurement. For this, place the measuring tool
on a table and measure the grade. Turn the measuring tool by 180 ° and
measure the grade again. The difference of the indicated reading may not
exceed by more than 0.3 ° (max.).
1 618 C00 93G | (23.1.14) Bosch Power Tools